This is quick tutorial to using Blender to model 3D low poly tree. Tutorial for step by step for beginner. Timestamp 00:00 ...

Warning: If you start playing with fractals, it can get addicting. I don't know why, but it's stupid fun to make these things. Actually, I first started looking at fractals as part of the #TeamTrees ...

You can even build a 3D model. The simplest tree house plans involve four straight walls and a flat roof, but some people prefer to shoot for a fancier design.